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| author | Takashi Iwai <tiwai@suse.de> | 2019-04-12 11:37:19 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2019-04-12 12:50:10 +0200 |
| commit | 7c32ae35fbf9cffb7aa3736f44dec10c944ca18e (patch) | |
| tree | a1a2a0b1ef3c07979c4bfb8869f97c971580d157 /sound/core/seq/seq_clientmgr.c | |
| parent | f0654ba94e33699b295ce4f3dc73094db6209035 (diff) | |
ALSA: seq: Cover unsubscribe_port() in list_mutex
The call of unsubscribe_port() which manages the group count and
module refcount from delete_and_unsubscribe_port() looks racy; it's
not covered by the group list lock, and it's likely a cause of the
reported unbalance at port deletion. Let's move the call inside the
group list_mutex to plug the hole.
Reported-by: syzbot+e4c8abb920efa77bace9@syzkaller.appspotmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/seq/seq_clientmgr.c')
0 files changed, 0 insertions, 0 deletions